Celebrating 30 years in helping patients achieve their weight loss goals.
Since starting the fast a week ago I have dropped 5 lbs and my skin has cleared up completely. I remembered wondering what I had gotten myself into, but I had committed to this little project and there was no way I was backing out. Possible modest effect on body weight. Effect of glucomannan on plasma lipid and glucose concentrations, body weight, and blood pressure: Any thoughts about the impact this difference might implicate other than probably more weightloss in the one day per week group?
GNC Lean Shakes Flavors and Taste
There are alternatives to GNC Lean Shakes offering similar nutritional value and benefits to weight loss. And while 18 Shake has only 90 calories per serving, comapred to GNC Lean Shakes calories, the nutrition is different too. Isagenix recommends 1 to 3 shakes a day as a way to get high nutrition while cutting calories. The cost of weight loss meal replacement shakes is always a factor.
We found the following prices at GNC. GNC also offers a subscription option, with automatic delivery. There are also specials and sales on occasion, both online and in stores. GNC Lean Shakes are easy to buy online, with all the usual suspects offering them up for sale. They can be purchased online from Amazon, eBay, Walmart, Jet and others. To properly gain the desired results from GNC Lean Shakes, consumers are directed to use the shakes as a replacement for meals at least once per day.
To make your shake, add liquid to your shaker cup or blender and top it off with the meal replacement powder. One serving of GNC Lean Shake is made with two scoops 48 grams of powder, mixed with 8 ounces of liquid. Liquid options that meet the reduced-calorie idea include:.
GNC also offers several downloadable documents to help you attain your weight loss goals. Make sure to store your GNC Lean Shake protein powder in a cool, dry place, as instructed by the manufacturer. When you are ready to kick up the flavor of your meal replacement shake, there are plenty of yummy ways to go. Place all ingredients in a blender and mix well. Add water to desired consistency.
GNC Corporation is a worldwide specialty retailer of health and wellness products. Products include vitamin, mineral and herbal supplements; teas and other food based supplements; sports nutrition products and weight loss products.
GNC was founded in and employs about 5, people in over 7, retail stores. Products can also be purchased online at www. People who consumed meal replacement shakes have reported varying results, with the majority and research saying an average weight loss of one to three pounds per week.
Some users reported a negative response to the taste and consistency of various flavors of the GNC Lean Shake, indicating that the shake had a chalky or stale consistency. Other users also said temporary side effects including constipation, loose bowels and decreased energy levels. When taken consistently as a meal replacement for one to two weeks, however, results from GNC Lean Shakes were fairly positive with users reporting an average loss of five pounds per month.
Mix it up using their suggestion of orange juice. I also like the vanilla powder one which tastes great using their suggestion of cinnamon and graham crackers. Just not so much cinnamon! I just use one teaspoon not the recommended tablespoon. Even then there is a weird after taste. We appreciate that GNC Lean Shakes provide a significant amount of fiber to assist with regularity and appetite suppression. Furthermore, the amount of protein in a serving of this is quite minimal only 9 grams. If you want to slim down and rock your best body, we encourage you to choose a diet supplement that is both affordable and backed by real clinical results.
This diet formula contains a unique blend of four ingredients, which have been shown in documented clinical studies to improve fat loss and increase metabolism. We are unable to find any discussion of harmful adverse effects and dieter reviews posted on the web indicate people are seeing wonderful results. Choosing the right weight-loss system can be confusing and often times frustrating.
Let us know a little more about you and your goals. GNC Lean Shakes side effects may include headache, cramping, bloating, thirst, irregular bowel movement and nausea, as reported by some dieters. Choosing the right product is the 1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn TS, with scientifically backed ingredients.
There are studies suggesting protein is beneficial to weight-loss, but nothing links to this particular formula. Each bottle contains 16 servings or eight days worth.
Summer Banks, Director of Content at Dietspotlight, has researched over weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with professionals in the weight loss industry and completed coursework in nutrition at Stanford University. Do Not Send Email Notifications. I just bout my very first one today since it was recommended by my boyfriend who works at GNC and I loved it.
I bought the bottle just to try it and bought two small packages for tomorrow morning. I have not tried it with water yet but the flavor that I got was Chocolate and it was great!
I am very happy and will continue, however, I eat my one meal at lunch instead of dinner. I tried four flavors of the shakes and ended up returning all of them. It was quite disappointing. Keeping a low calorie and low carb diet is best for any diet shake or supplement. Avoid foods high in fat. The authors of a meta- analysis that included 20 clinical trials concluded that ephedrine and ephedra are modestly effective for short-term weight loss 6 months or less , but no studies have assessed their long-term effects [ ].
While ephedra was available as a dietary supplement ingredient in the United States, its use with or without caffeine was associated with numerous reported adverse effects, including nausea, vomiting, psychiatric symptoms such as anxiety and mood change , hypertension, palpitations, stroke, seizures, heart attack, and death [ , ].
Although these reported adverse effects could not be linked with certainty to the use of ephedra-containing dietary supplements, the FDA deemed the safety concerns serious enough to prohibit the sale of dietary supplements containing ephedrine alkaloids in [ ]. As a result of this ruling, manufacturers are no longer permitted to sell dietary supplements containing ephedrine alkaloids in the United States.
Like all dietary supplements, weight-loss supplements can have side effects and might interact with prescription and over-the-counter medications. In some cases, the active constituents of botanical or other ingredients promoted for weight loss are unknown or uncharacterized [ 29 ]. Furthermore, many weight-loss supplements contain multiple ingredients that have not been adequately tested in combination with one another. Pittler and Ernst noted that for ingredients lacking convincing evidence of effectiveness, "even minor adverse events shift the delicate risk-benefits balance against their use" [ 6 ].
People need to talk with their healthcare providers about the use of weight-loss dietary supplements to understand what is known—and not known—about these products. Messages like "magic diet pill! At best, products with claims like these do not live up to them, and even worse, they could be dangerous.
Between January and December , dietary supplements were subject to a Class I recall by the FDA, indicating a reasonable probability that use of or exposure to these products would cause serious adverse health consequences.
In most cases, the recall was due to the presence of undeclared drug ingredients. In , the FDA issued 36 public notifications warning consumers not to purchase specific weight-loss products because they contained a hidden drug ingredient—often sibutramine, a weight-loss medication that was withdrawn from the U.
A product represented as a dietary supplement that contains one or more drug ingredients, whether or not these ingredients are declared on the label, is considered an unapproved drug and is therefore subject to enforcement action by the FDA. The FDA maintains a webpage listing public notifications about tainted weight-loss products.
Some ingredients in weight-loss dietary supplements can interact with certain medications. For example, glucomannan and guar gum might decrease the absorption of many drugs that are taken orally [ , ]. Glucomannan has been reported to lower blood glucose levels [ ] and, therefore, could interact with diabetes medications [ ].
Chitosan might potentiate the anticoagulant effects of warfarin [ ]. Green tea could interact with chemotherapy drugs [ , ]. Garcinia cambogia was associated with serotonin toxicity in a patient taking the supplement together with two selective serotonin reuptake inhibitor medications [ ].
Other ingredients, such as caffeine and bitter orange, could have an additive effect if taken with other stimulants. Bitter orange has also been shown to inhibit CYP3A4 activity, leading to increased blood levels of certain drugs, such as cyclosporine and saquinavir [ 43 ]. These are just a few examples of interactions between ingredients of weight-loss dietary supplements and medications. Individuals taking dietary supplements and medications on a regular basis should discuss their use with their healthcare provider.
As this fact sheet shows, the evidence supporting the use of dietary supplements to reduce body weight and stimulate weight loss is inconclusive and unconvincing, and the cost of these products can be considerable [ 6 , 14 , 29 , 41 ]. The best way to lose weight and keep it off is to follow a sensible approach that incorporates a healthy eating plan, reduced caloric intake, and moderate physical activity under the guidance of a heath care provider.
For some individuals with a high BMI who have additional health risks, physicians may prescribe adjunctive treatments, including FDA- approved prescription medications or bariatric surgery, in addition to lifestyle modifications [ 7 ]. Lifestyle changes that promote weight loss might also improve mood and energy levels and lower the risk of heart disease, diabetes, and some cancers [ 5 ]. The Weight-control Information Network , a service of the National Institute of Diabetes and Digestive and Kidney Diseases at the National Institutes of Health, provides several helpful publications on weight control, obesity, physical activity, and related nutritional issues.
The federal government's Dietary Guidelines for Americans notes that "Nutritional needs should be met primarily from foods. In some cases, fortified foods and dietary supplements may be useful in providing one or more nutrients that otherwise may be consumed in less-than-recommended amounts. For more information about building a healthy diet, refer to the Dietary Guidelines for Americans and the U. Department of Agriculture's MyPlate.
This fact sheet by the Office of Dietary Supplements ODS provides information that should not take the place of medical advice. We encourage you to talk to your healthcare providers doctor, registered dietitian, pharmacist, etc.
Any mention in this publication of a specific product or service, or recommendation from an organization or professional society, does not represent an endorsement by ODS of that product, service, or expert advice. November 1, History of changes to this fact sheet. Strengthening Knowledge and Understanding of Dietary Supplements. Prevalence of obesity and trends in the distribution of body mass index among US adults, Prevalence of obesity and trends in body mass index among US children and adolescents, Supplemental products used for weight loss.
J Am Pharm Assoc ; Department of Agriculture, U. Department of Health and Human Services. Dietary Guidelines for Americans, Government Printing Office; Weight Loss for Life.
Pittler MH, Ernst E. Dietary supplements for body-weight reduction: Am J Clin Nutr ; Use of nonprescription dietary supplements for weight loss is common among Americans. J Am Diet Assoc ; Nutr Bus J ; Why US adults use dietary supplements. Availability of weight-loss supplements: Results of an audit of retail outlets in a southeastern city. General Accounting Office now the U.
Dietary Supplements for Weight Loss: Food and Drug Administration. Plant extracts with appetite suppressing properties for body weight control: Complement Ther Med ; Alternative treatments for weight loss: Crit Rev Food Sci Nutr ; New dietary supplements for obesity: Curr Obes Rep ;5: An evidence-based review of fat modifying supplemental weight loss products.
IGOB, a novel seed extract of the West African plant Irvingia gabonensis, significantly reduces body weight and improves metabolic parameters in overweight humans in a randomized double-blind placebo controlled investigation. Lipids Health Dis ;8: The efficacy of Irvingia gabonensis supplementation in the management of overweight and obesity: J Diet Suppl ; Food Chem Toxicol ; A case of renal failure developing in association with African mango consumption. Int J Clin Exp Med ;8: Effect of cooked white rice with high beta-glucan barley on appetite and energy intake in healthy Japanese subjects: Plant Foods Hum Nutr ; Oat beta-glucan supplementation does not enhance the effectiveness of an energy-restricted diet in overweight women.
Br J Nutr ; Concentrated oat beta-glucan, a fermentable fiber, lowers serum cholesterol in hypercholesterolemic adults in a randomized controlled trial. Citrus aurantium and synephrine alkaloids in the treatment of overweight and obesity: Effect of acute administration of an herbal preparation on blood pressure and heart rate in humans. Int J Med Sci ;8: The safety of Citrus aurantium bitter orange and its primary protoalkaloid p-synephrine.
Determination of synephrine in bitter orange raw materials, extracts, and dietary supplements by liquid chromatography with ultraviolet detection: Dietary supplements in weight reduction. A review of the human clinical studies involving Citrus aurantium bitter orange extract and its primary protoalkaloid p-synephrine. Int J Med Sci ;9: Effects of Citrus aurantium extract, caffeine, and St.
John's Wort on body fat loss, lipid levels, and mood states in overweight healthy adults. Curr Ther Res ; Safety and efficacy of Citrus aurantium for weight loss. Am J Cardiol ; Dietary herbal supplements with phenylephrine for weight loss. J Med Food ;9: Efficacy of herbal supplements containing Citrus aurantium and synephrine alkaloids for the management of overweight and obesity: Focus Altern Complement Ther ; Assessment of the adverse event reports associated with Citrus aurantium bitter orange from April to October Journal of Functional Foods ;2: A 60day double-blind, placebo-controlled safety study involving Citrus aurantium bitter orange extract.
Hemodynamic effects of ephedra-free weight-loss supplements in humans. Am J Med ; Blood pressure and heart rate effects following a single dose of bitter orange. Physiological effects following administration of Citrus aurantium for 28 days in rats. Toxicol Appl Pharmacol ; Effects of ingesting a pre-workout dietary supplement with and without synephrine for 8 weeks on training adaptations in resistance-trained males.
J Int Soc Sports Nutr ; Dietary supplements for improving body composition and reducing body weight: Toxicity of weight loss agents. J Med Toxicol ;8: The effect of caffeine on energy balance.
J Basic Clin Physiol Pharmacol ; Oral intake of a combination of glucosyl hesperidin and caffeine elicits an anti-obesity effect in healthy, moderately obese subjects: Weight loss and delayed gastric emptying following a South American herbal preparation in overweight patients. J Hum Nutr Diet ; Changes in caffeine intake and long-term weight change in men and women.
Caffeine intake is related to successful weight loss maintenance. Eur J Clin Nutr ; Scientific opinion on the safety of caffeine. Sports drinks and energy drinks for children and adolescents: Dietary supplement adverse events: J Med Toxicol ;4: Washington DC ; Calcium intake and body weight.
J Clin Endocrinol Metab ; Calcium intake and adiposity. Regulation of adiposity by dietary calcium. Calcium, obesity, and the role of the calcium-sensing receptor.
Effect of calcium from dairy and dietary supplements on faecal fat excretion: Effect of short-term high dietary calcium intake on h energy expenditure, fat oxidation, and fecal fat excretion. Int J Obes Lond ; J Am Coll Nutr ; Effects of dietary calcium on adipocyte lipid metabolism and body weight regulation in energy-restricted aP2-agouti transgenic mice.
Dairy augmentation of total and central fat loss in obese subjects. Calcium and dairy acceleration of weight and fat loss during energy restriction in obese adults. Effect of dairy calcium from cheese and milk on fecal fat excretion, blood lipids, and appetite in young men. Effects of calcium supplementation on body weight and adiposity in overweight and obese adults: Ann Intern Med ; Vitamin D and calcium: Effects of dairy intake on body weight and fat: A systematic review of the effects of calcium supplementation on body weight.
Effect of increasing dietary calcium through supplements and dairy food on body weight and body composition: Effects of calcium supplementation on body weight: A prospective study of dietary calcium and other nutrients and the risk of symptomatic kidney stones. N Engl J Med ; Comparison of dietary calcium with supplemental calcium and other nutrients as factors affecting the risk for kidney stones in women.
Calcium plus vitamin D supplementation and the risk of fractures. Could capsaicinoids help to support weight management? A systematic review and meta-analysis of energy intake data. Acute effects of capsaicin on energy expenditure and fat oxidation in negative energy balance.
Capsaicin increases sensation of fullness in energy balance, and decreases desire to eat after dinner in negative energy balance. Mechanisms and clinical uses of capsaicin.
Eur J Pharmacol ; Capsaicin-induced satiety is associated with gastrointestinal distress but not with the release of satiety hormones. Effects of twelve weeks of capsaicinoid supplementation on body composition, appetite and self-reported caloric intake in overweight individuals. The effect of L- carnitine on weight loss in adults: Orlistat and L-carnitine compared to orlistat alone on insulin resistance in obese diabetic patients. The effect of L-carnitine on plasma lipoprotein a levels in hypercholesterolemic patients with type 2 diabetes mellitus.
Lessons from One Hundred Years of Research. Annals of the New York Academy of Sciences ; L-Carnitine supplementation combined with aerobic training does not promote weight loss in moderately obese women. Modern Nutrition in Health and Disease. Chitosan supplementation and fat absorption in men and women. A randomized, double-blind, placebo-controlled study examining the effects of a rapidly soluble chitosan dietary supplement on weight loss and body composition in overweight and mildly obese individuals.
J Am Nutraceutical Assoc ;4: L-ascorbic acid addition to chitosan reduces body weight in overweight women. Int J Vitam Nutr Res ; Randomized, double-blind trial of chitosan for body weight reduction. Chitosan for overweight or obesity.
Cochrane Database Syst Rev Natural Medicines Comprehensive Database. Institute of Medicine, Food and Nutrition Board. National Academy Press; Chromium supplementation in overweight and obesity: Chromium picolinate supplementation for overweight or obese adults. Cochrane Database Syst Rev ; Effects of chromium picolinate on food intake and satiety. Diabetes Technol Ther ; Chromium picolinate for reducing body weight: A review on botanical species and chemical compounds with appetite suppressing properties for body weight control.
Body composition and hormonal adaptations associated with forskolin consumption in overweight and obese men. Effect of Coleus forskohlii extract on cafeteria diet-induced obesity in rats. Effects of Coleus forskohlii supplementation on body composition and hematological profiles in mildly overweight women.
J Int Soc Sports Nutr ;2: Coleus forskohlii extract supplementation in conjunction with a hypocaloric diet reduces the risk factors of metabolic syndrome in overweight and obese subjects: Dietary Coleus forskohlii extract generates dose-related hepatotoxicity in mice.
J Appl Toxicol ; Conjugated linoleic acid supplementation for 1 y reduces body fat mass in healthy overweight humans. A review on effects of conjugated linoleic fatty acid CLA upon body composition and energetic metabolism.
The efficacy of long-term conjugated linoleic acid CLA supplementation on body composition in overweight and obese individuals: Eur J Nutr ; Comparison of dietary conjugated linoleic acid with safflower oil on body composition in obese postmenopausal women with type 2 diabetes mellitus.
Effect of conjugated linoleic acid supplementation on weight loss and body fat composition in a Chinese population. Effect of conjugated linoleic acid associated with aerobic exercise on body fat and lipid profile in obese women: Supplementation with conjugated linoleic acid for 24 months is well tolerated by and reduces body fat mass in healthy, overweight humans.
Conjugated linoleic acid supplementation for twelve weeks increases lean body mass in obese humans. Annu Rev Food Sci Technol ;7: Linoleic acid induced acute hepatitis: Case Reports Hepatol ; Fulminant hepatitis during self-medication with conjugated linoleic acid.
Conjugated linoleic acid-induced toxic hepatitis: Dig Dis Sci ; Conjugated linoleic acid intake in humans: Effect of conjugated linoleic acid on body composition and plasma lipids in humans: Conjugated linoleic acid CLA and obesity. Public Health Nutr ; Treatment with dietary trans10cis12 conjugated linoleic acid causes isomer-specific insulin resistance in obese men with the metabolic syndrome.
Fucoxanthin, a marine carotenoid present in brown seaweeds and diatoms: The effects of Xanthigen in the weight management of obese premenopausal women with non-alcoholic fatty liver disease and normal liver fat. Diabetes Obes Metab ; Evaluation of the safety and efficacy of hydroxycitric acid or Garcinia cambogia extracts in humans.
Common dietary supplements for weight loss. Am Fam Physician ; The use of garcinia extract hydroxycitric acid as a weight loss supplement: Effects of - -hydroxycitric acid on appetitive variables.
Garcinia cambogia hydroxycitric acid as a potential antiobesity agent: Evid Based Complement Alternat Med ; Mania induced by Garcinia cambogia: Garcinia cambogia-associated hepatic failure requiring transplantation.
World J Gastroenterol ; Acute hepatitis induced by pure Garcinia cambogia. J Clin Gastroenterol ; Acute liver failure associated with Garcinia cambogia use. Glucomannan and risk of oesophageal obstruction. Effect of glucomannan on plasma lipid and glucose concentrations, body weight, and blood pressure: Effect of glucomannan on obese patients: Int J Obes ;8: Effect of short-term ingestion of konjac glucomannan on serum cholesterol in healthy men.
Safety and efficacy of glucomannan for weight loss in overweight and moderately obese adults. The effect of glucomannan on body weight in overweight or obese children and adults: A systematic review of randomized controlled trials. Correction of data errors and reanalysis of "The effect of glucomannan on body weight in overweight or obese children and adults: A systematic review of randomized controlled trials".
The efficacy of glucomannan supplementation in overweight and obesity: Chlorogenic acids from green coffee extract are highly bioavailable in humans. Green coffee bean extract improves obesity by decreasing body fat in high-fat diet-induced obese mice.
Asian Pac J Trop Med ;9: Decaffeinated green coffee bean extract attenuates diet-induced obesity and insulin resistance in mice. The use of green coffee extract as a weight loss supplement: Gastroenterol Res Pract ; Randomized, double-blind, placebo-controlled, linear dose, crossover study to evaluate the efficacy and safety of a green coffee bean extract in overweight subjects.
Diabetes Metab Syndr Obes ;5: Federal Trade Commission, Laboratory, epidemiological, and human intervention studies show that tea Camellia sinensis may be useful in the prevention of obesity. Catechin- and caffeine-rich teas for control of body weight in humans. Antiobesity effects of green tea catechins: J Nutr Biochem ; Nutraceuticals for body-weight management: The role of green tea catechins. A minireview of effects of green tea on energy expenditure.
Green tea extract decreases starch digestion and absorption from a test meal in humans: Influence of short-term consumption of the caffeine-free, epigallocatechingallate supplement, Teavigo, on resting metabolism and the thermic effect of feeding. Obesity Silver Spring ; Effects of dietary supplementation with epigallocatechingallate on weight loss, energy homeostasis, cardiometabolic risk factors and liver function in obese women: Green tea for weight loss and weight maintenance in overweight or obese adults.
Effect of green tea catechins with or without caffeine on anthropometric measures: Green tea extract and catechol-O-methyltransferase genotype modify fasting serum insulin and plasma adiponectin concentrations in a randomized controlled trial of overweight and obese postmenopausal women. The effects of green tea on weight loss and weight maintenance: Scientific opinion on the substantiation of health claims related to Camellia sinensis L.
Effect of green tea supplements on liver enzyme elevation: Cancer Prev Res Phila ; Daily consumption of an aqueous green tea extract supplement does not impair liver function or alter cardiovascular disease risk biomarkers in healthy men. Liver injury from herbal and dietary supplements. Safety of green tea extracts: Guar gum for body weight reduction: Role of guar fiber in appetite control.
Improvement of the metabolic syndrome profile by soluble fibre - guar gum - in patients with type 2 diabetes: Adverse events of herbal food supplements for body weight reduction: Esophageal and small bowel obstruction from guar gum-containing "diet pills": Am J Gastroenterol ; There are different types of meal replacements to suit your goals:. While your first concern should be that the meal replacement suit your goal and fit your diet e. However, while ideally you should like the taste of the meal replacement, it should not be your overriding concern when making a choice.
The tastiest meal replacements are most likely to be high in sugar and fat. Low-calorie meal replacement shakes are geared towards weight loss. Although similar in cost to the higher protein meal replacement shakes, these contain less protein, carbs fats and of course calories per serving.
Myoplex Carb Control is a low-carb meal replacement shake, but also low in calories calories.